Load Specifications
Load data in caliber 8 x 57 IS with .323 | 160gr | Fox Classic Hunter bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and IMR 3031.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 48,153 psi | 85% | 2707 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 49,530 psi | 88% | 2776 fps | 95.9% |
| Accurate 2230 | <<locked>> | 84% | 49,748 psi | 88% | 2782 fps | 96.4% |
| Accurate 2460 | <<locked>> | 90% | 49,850 psi | 88% | 2762 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,995 psi | 88% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 50,720 psi | 90% | 2815 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,296 psi | 82% | 2769 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 86% | 50,343 psi | 89% | 2671 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 50,792 psi | 90% | 2684 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 96% | 50,618 psi | 89% | 2812 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 84% | 50,937 psi | 90% | 2703 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,675 psi | 86% | 2749 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 86% | 49,371 psi | 87% | 2776 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 94% | 50,560 psi | 89% | 2779 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 94% | 48,399 psi | 86% | 2785 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 51,169 psi | 90% | 2877 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,369 psi | 82% | 2762 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 88% | 48,588 psi | 86% | 2723 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,952 psi | 90% | 2835 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 48,921 psi | 86% | 2667 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 49,095 psi | 87% | 2664 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 46,209 psi | 82% | 2769 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 92% | 50,140 psi | 89% | 2730 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 94% | 48,312 psi | 85% | 2799 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 92% | 50,024 psi | 88% | 2877 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 90% | 50,995 psi | 90% | 2802 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 48,849 psi | 86% | 2772 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 82% | 49,153 psi | 87% | 2667 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 96% | 50,952 psi | 90% | 2822 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 49,008 psi | 87% | 2841 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,286 psi | 59% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 49,443 psi | 87% | 2776 fps | 97.3% |
| IMR 3031 | <<locked>> | 96% | 48,907 psi | 86% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 47,834 psi | 85% | 2730 fps | 95.9% |
| IMR 4198 | <<locked>> | 88% | 50,053 psi | 88% | 2700 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 48,718 psi | 86% | 2815 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 94% | 50,560 psi | 89% | 2779 fps | 98.2% |
| Lovex D073.4 | <<locked>> | 84% | 50,256 psi | 89% | 2776 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 90% | 49,951 psi | 88% | 2769 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 96% | 48,298 psi | 85% | 2789 fps | 99.2% |
| Lovex S060 | <<locked>> | 94% | 48,863 psi | 86% | 2703 fps | 96.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,792 psi | 88% | 2785 fps | 98.2% |
| Norma 200 | <<locked>> | 84% | 48,515 psi | 86% | 2700 fps | 100% |
| Norma 201 | <<locked>> | 96% | 49,139 psi | 87% | 2759 fps | 98.1% |
| Norma 202 | <<locked>> | 96% | 49,458 psi | 87% | 2782 fps | 99.6% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,951 psi | 88% | 2825 fps | 97% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,720 psi | 90% | 2844 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 94% | 49,676 psi | 88% | 2799 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 90% | 48,921 psi | 86% | 2726 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,185 psi | 59% | 1729 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 50,502 psi | 89% | 2776 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 50,169 psi | 89% | 2890 fps | 96.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,425 psi | 79% | 2802 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 94% | 50,082 psi | 89% | 2759 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 98% | 49,342 psi | 87% | 2753 fps | 98.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,554 psi | 75% | 2697 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 84% | 50,256 psi | 89% | 2776 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 96% | 48,298 psi | 85% | 2789 fps | 99.2% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,792 psi | 88% | 2785 fps | 98.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 50,821 psi | 90% | 2743 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 48,979 psi | 87% | 2428 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 49,806 psi | 88% | 2782 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 49,661 psi | 88% | 2740 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 48,994 psi | 87% | 2776 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 49,182 psi | 87% | 2687 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,225 psi | 85% | 2680 fps | 99.9% |
| Somchem S321 | <<locked>> | 90% | 47,877 psi | 85% | 2759 fps | 98.1% |
| Somchem S335 | <<locked>> | 96% | 50,778 psi | 90% | 2730 fps | 99.9% |
| Somchem S341 | <<locked>> | 94% | 48,051 psi | 85% | 2746 fps | 96.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 44,266 psi | 78% | 2710 fps | 96.2% |
| Vihtavuori N120 | <<locked>> | 84% | 50,952 psi | 90% | 2654 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 49,095 psi | 87% | 2677 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 48,805 psi | 86% | 2687 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,879 psi | 90% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 49,922 psi | 88% | 2759 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,496 psi | 75% | 2651 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 94% | 50,981 psi | 90% | 2779 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 98% | 48,269 psi | 85% | 2753 fps | 99.4% |
| Winchester 748 | <<locked>> | 94% | 48,994 psi | 87% | 2815 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 96% | 48,182 psi | 85% | 2782 fps | 97.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 32,953 psi | 58% | 2421 fps | 98.8% |
| Accurate 2200 | <<locked>> | 82% | 46,499 psi | 82% | 2720 fps | 95.1% |
| Accurate 2230 | <<locked>> | 82% | 46,050 psi | 81% | 2720 fps | 95.5% |
| Accurate 2460 | <<locked>> | 80% | 35,404 psi | 63% | 2497 fps | 97% |
| Accurate 2495 | <<locked>> | 80% | 25,034 psi | 44% | 2280 fps | 96.6% |
| Accurate 2520 | <<locked>> | 82% | 33,098 psi | 59% | 2480 fps | 95.8% |
| Accurate 4064 | <<locked>> | 86% | 28,993 psi | 51% | 2405 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 41,843 psi | 74% | 2526 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 80% | 42,206 psi | 75% | 2536 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 92% | 44,512 psi | 79% | 2703 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 45,063 psi | 80% | 2615 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 45,484 psi | 80% | 2694 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 39,929 psi | 71% | 2612 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 39,117 psi | 69% | 2569 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 30,197 psi | 53% | 2438 fps | 99.8% |
| Alliant Power Pro 1200-R | 43.8 gr | 84% | 41,930 psi | 74% | 2707 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 38,348 psi | 68% | 2608 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,840 psi | 67% | 2536 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 96% | 44,715 psi | 79% | 2726 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,992 psi | 81% | 2621 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,263 psi | 71% | 2516 fps | 99.4% |
| Bofors RP3 | <<locked>> | 96% | 39,958 psi | 71% | 2654 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,927 psi | 65% | 2480 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 86% | 36,361 psi | 64% | 2569 fps | 95.5% |
| Hodgdon CFE223 | <<locked>> | 90% | 46,760 psi | 83% | 2818 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 36,477 psi | 64% | 2539 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 36,883 psi | 65% | 2549 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 80% | 46,180 psi | 82% | 2618 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 90% | 42,090 psi | 74% | 2664 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 40,335 psi | 71% | 2674 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,323 psi | 43% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 40,843 psi | 72% | 2618 fps | 95.2% |
| IMR 3031 | 40.3 gr | 80% | 28,906 psi | 51% | 2408 fps | 96.9% |
| IMR 4064 | <<locked>> | 96% | 44,904 psi | 79% | 2677 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 39,450 psi | 70% | 2526 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 42,989 psi | 76% | 2710 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 86% | 39,117 psi | 69% | 2569 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 43,613 psi | 77% | 2664 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 35,056 psi | 62% | 2487 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 84% | 31,821 psi | 56% | 2461 fps | 95.2% |
| Lovex S060 | <<locked>> | 90% | 43,366 psi | 77% | 2605 fps | 95.3% |
| Lovex S062 | <<locked>> | 92% | 38,595 psi | 68% | 2579 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 42,786 psi | 76% | 2608 fps | 100% |
| Norma 201 | <<locked>> | 88% | 38,043 psi | 67% | 2552 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 29,356 psi | 52% | 2369 fps | 95% |
| Norma 203B | <<locked>> | 96% | 43,830 psi | 77% | 2717 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 96% | 44,367 psi | 78% | 2733 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 43,410 psi | 77% | 2687 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 86% | 42,946 psi | 76% | 2621 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,366 psi | 43% | 1542 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,303 psi | 64% | 2510 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 46,760 psi | 83% | 2828 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 36,593 psi | 65% | 2621 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 32,721 psi | 58% | 2415 fps | 96% |
| Rottweil R 902 | <<locked>> | 90% | 38,450 psi | 68% | 2552 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 98% | 39,842 psi | 70% | 2644 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 43,613 psi | 77% | 2664 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 31,821 psi | 56% | 2461 fps | 95.2% |
| Shooters World Precision | <<locked>> | 92% | 38,595 psi | 68% | 2579 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,522 psi | 68% | 2520 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,601 psi | 82% | 2395 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,437 psi | 71% | 2615 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,551 psi | 68% | 2546 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 43,105 psi | 76% | 2671 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,589 psi | 56% | 2346 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,180 psi | 48% | 2251 fps | 95.2% |
| Somchem S321 | <<locked>> | 82% | 36,535 psi | 65% | 2539 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 30,937 psi | 55% | 2349 fps | 96.6% |
| Somchem S341 | <<locked>> | 92% | 44,889 psi | 79% | 2690 fps | 95.6% |
| Somchem S355 | <<locked>> | 98% | 41,292 psi | 73% | 2654 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 45,121 psi | 80% | 2569 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,100 psi | 64% | 2448 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 31,459 psi | 56% | 2359 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 26,339 psi | 47% | 2303 fps | 97% |
| Vihtavuori N140 | <<locked>> | 82% | 29,544 psi | 52% | 2356 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 96% | 37,347 psi | 66% | 2549 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 86% | 39,044 psi | 69% | 2566 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 84% | 30,313 psi | 54% | 2388 fps | 95.2% |
| Winchester 748 | 45.8 gr | 84% | 34,998 psi | 62% | 2539 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 42,047 psi | 74% | 2671 fps | 95.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 91 powders for 8 x 57 IS loaded with the .323 | 160gr | Fox Classic Hunter. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,890 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,890 fps. Accurate 2495 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 1200-R, Winchester 748, IMR 3031 rank at the top here: for 8 x 57 IS with the .323 | 160gr | Fox Classic Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-17, Hodgdon H380, IMR 4166 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.